Mask Insert With Separating Element For Airflow Control

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Solution Overview

Problem

Existing mouth and nose protectors suffer from air mixing between the nose and mouth areas, leading to reduced hygiene, comfort, and increased complexity in design, particularly due to the need for regular filter replacement and inefficient air exchange.

Innovation Solution

A mask insert with a separating element between the nose and mouth areas, designed to prevent air mixing, featuring a contoured face fit, ramp-like separating element, and adjustable openings for improved airflow and filter integration, which can be used universally with existing masks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mask is designed with separate nasal and mouth areas, then air exchange is improved, but air mixing between nasal and mouth areas occurs reducing hygiene and comfort

Engineering Contradiction:
Improveair exchange efficiencyVSAvoidair mixing between nasal and mouth areas
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The mask insert is divided into separate nasal and mouth areas by a separating element that extends from the front to the back of the mask insert. This segmentation prevents air mixing between the nasal and mouth areas while maintaining efficient air exchange in each zone, directly resolving the contradiction between improved air exchange and prevention of harmful air mixing.

Inventive Principle:
Principle #1Segmentation

2Reliability

If complex mask designs with one-way valves are used, then inhalation and exhalation control is improved, but device complexity and filter replacement requirements increase

Engineering Contradiction:
Improveinhalation and exhalation controlVSAvoidmask structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The complex one-way valve mechanism and filter system are extracted and replaced by a simple separating element that divides the mask insert into nasal and mouth areas. This allows natural breathing control without mechanical valves, significantly reducing device complexity while maintaining reliable inhalation and exhalation function through the separate air pathways.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If filters are integrated into the mask, then protective effect is improved, but regular filter replacement is required increasing time consumption and limiting usability

Engineering Contradiction:
Improveprotective effectVSAvoidfilter replacement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The mask insert is designed as a disposable or easily cleanable component that can be replaced frequently at low cost, eliminating the need for complex filter replacement procedures. The separating element maintains protective function while the entire mask insert can be quickly discarded or sanitized, reducing time loss and improving usability when filters are unavailable.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances wearing comfort, improves air exchange, and allows for easier breathing by preventing air mixing, while enabling separate cleaning and filter replacement, thus addressing the limitations of existing designs.

Implementation Method 1

a separating element which is arranged to separate the inhaled/exhaled air from the nasal area from the inhaled/exhaled air from the mouth area

Methodology Applied
Scientific EffectPhysical separation:

Implementation Method 2

The openings at the ends of the cavernous nose and mouth areas of the mask insert, located at the front, create a nozzle effect that amplifies the airflow, thus facilitating inhalation and exhalation

Methodology Applied
Scientific EffectNozzle effect: De Laval Nozzle

Data Source

PatentEP3967374A1Mask insert and mask
Publication Date: 2022.03.16 IP IDEAS PRODN GMBH & CO KG
  • EP3967374A1 patent drawingFigure 1a~1b
  • EP3967374A1 patent drawingFigure 2~4
  • EP3967374A1 patent drawingFigure 5~8

AI summary

The invention relates to a mask insert for wearing under a face mask and a mask for wearing as a face mask on the face, with an at least partially dimensionally stable mask body, wherein an inner area of ​​the mask is divided by a separating element into a nasal area which, when used as intended, receives the nose and a mouth area which covers the mouth, wherein the separating element is arranged to separate the inhaled/exhaled air from the nasal area from the inhaled/exhaled air from the mouth area.In order to create a mask insert and a mask that is hygienic, safe to wear and comfortable, the mask insert (2) is provided to have a nose area (6) for receiving the nose and a mouth area (8) covering the mouth, and a separating element (10) is provided between the nose area (6) and the mouth area (8), which is designed to separate the breathing air from the mouth area (8) from the breathing air from the nose area (6).